* Generator: [DEM Net Elevation API](https://elevationapi.com)
* Mesh reduction: [geometry3Sharp (GradientSpace, Ryan Schmidt) BSL 1.0 License](https://github.com/gradientspace/geometry3Sharp/blob/master/LICENSE)
* Digital Elevation Model: [Laurence Hawker, Jeffrey Neal (2021): FABDEM](https://data.bris.ac.uk/data/dataset/25wfy0f9ukoge2gs7a5mqpq2j7)
* Imagery: [MapBox Satellite Street](https://www.mapbox.com)